While engrossed in conversation with a friend, you failed to notice that your son had wandered into an elevator. As the doors closed, you finally realized and attempted to call out, but the person inside seemed oblivious. Acting swiftly, you decided to take the stairs and catch up. Reaching the 8th floor, you anxiously awaited the elevator's arrival. Upon opening, you were startled to find your ex-partner holding your son with an irritated expression,